That's an excellent question, Abeni!
Currently, for Instructors, there isn't a way for you to add a course yourself--please, reach out to your Account Manager who can work with your Customer Success Specialist to achieve this.
If you don't know who your Account Manager is, you can follow this link:
If you are a student, then the best way to access your course is to contact your Instructor. If they are using your school's Canvas instance, they can have you added, and if they are having their students log in at www.wileyplus.com, then they can provide you with a 6-digit course ID.
Thanks for reaching out!
Tom with Wiley